Ozzy Osbourne wants to renew his wedding vows after recently undergoing surgery. The 73-year-old music star has been married to Sharon Osbourne since 1982, and he’s now keen to exchange vows again after going under the knife. A friend of the couple said: “Ozzy may have been waiting on getting his neck and back sorted after extended leg pain, which has left him unable to walk for long periods. “But while that has been his hope, he always wants to treat Sharon to something special for their 40th.” Ozzy is determined to prove that “their love burns bright” and he’s even considering organising a t…